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United States Patent | 5,247,129 |
Nozaki ,   et al. | September 21, 1993 |
A wireless piano-touch electric sound producer comprises a keyboard assoicated with key action mechanisms and hammers driven for rotation upon depressing the assoicated keys, and a board accompanied with an absorber is shared between the hammer units for scaling down of the electric sound producer, wherein a memory unit stores pieces of vibratory information for reproducing sounds from vibrations on musical wires and board members of an acoustic piano so that a driver unit produces vibrations on a sound board of the electric sound producer on the basis of one of the pieces of vibratory information selected upon detecting actions of the keys to the hammers.
Inventors: | Nozaki; Kinya (Shizuoka, JP); Kawamura; Kiyoshi (Shizuoka, JP); Muramatsu; Shigeru (Shizuoka, JP) |
Assignee: | Yamaha Corporation (Hamamatsu, JP) |
Appl. No.: | 895591 |
Filed: | June 8, 1992 |
Jun 10, 1991[JP] | 3-165096 | |
Sep 12, 1991[JP] | 3-261221 | |
Sep 18, 1991[JP] | 3-267220 | |
Sep 18, 1991[JP] | 3-267221 | |
Sep 18, 1991[JP] | 3-267224 | |
Sep 18, 1991[JP] | 3-267225 |
Current U.S. Class: | 84/615; 84/192; 84/645; 84/744 |
Intern'l Class: | G10H 007/00; G10H 001/18 |
Field of Search: | 84/192,404,410,615,645,723,735,736,744,743 |
4324164 | Apr., 1982 | Monte et al. | 84/744. |
5054361 | Oct., 1991 | Usa | 84/743. |
5115705 | May., 1992 | Monte et al. | 84/617. |
Foreign Patent Documents | |||
4-500735 | Feb., 1992 | JP. | |
8901068 | Sep., 1989 | WO. |